TOP Roof drill for folded plate roofs 12.5mm ESD-125R 1 piece

Catalog number: ESD-125R Features: ● Dedicated type for pilot holes for folded roofs and roof bolts. ● The use of a stopper to prevent the roof from falling out and a rotating ring reduces scratches on the surface of the roof panels. ● The spiral shape provides a light cutting edge, allowing for speedy continuous drilling work and preventing cutting chips from falling to the ground. ● Impact resistant type. Applications: ● For civil engineering, prefabricated, and residential roofing materials. Specifications: ● Step width (mm): 3 ● Number of steps (steps): 9 ● Shank shape: Hexagonal shaft (6.35 mm) ● Shank diameter (mm): 6.35 ● Drilling dimensions (φ): 12.5 ● Total length (mm): 74 ● Blade diameter (mm): 12.5 ● Blade length (mm): 34.4 ● Surface treatment: Titanium coating ● Step drill dedicated to pilot holes for roof bolts on folded roofs (roof decks). The use of a stopper to prevent the roof from falling out and a rotating ring reduces scratches on the surface of the roof panels. Material/Finish: High-speed steel Caution: Do not use on thick steel plates as the plate thickness is 2mm or less (up to 2 sheets with 0.8mm overlap). Do not use on heat-treated metal plates. Apply cutting oil to stainless steel plates and operate at half the rotation speed of iron.